विष-ओक इसके अंग्रेजी अर्थ का उदाहरण

The species is an important destroyer of weed seeds on the Pacific Slope, with various ryegrasses, fescues, bromes, pigweeds, chickweeds, mulleins, filarees, common knotweed and poison oak among its known food sources.

Cucamonga Canyon in particular is a favorite among hikers, although dangerous due to the rough terrain, loose rocks, possible flooding, poison oak, bears, mountain lions, rattlesnakes, bobcats, and other wildlife.

It can be found alongside chaparral whitethorn (Ceanothus leucodermis), toyon (Heteromeles arbutifolia), skunkbush (Rhus trilobata), redberry (Rhamnus crocea), and western poison oak (Toxicodendron diversilobum).

The Ohlone people used the leaves to treat poison oak dermatitis.

Urushiol – oily coating from plants of Toxicodendron genus – poison ivy, poison oak, and poison sumac.